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Alloy 254 SMO is a premium super austenitic stainless steel plate with low carbon content, alloyed with molybdenum and nitrogen. This high-performance material offers exceptional resistance to pitting, crevice corrosion, stress corrosion cracking, and corrosion fatigue. With strength nearly double that of standard 300 series stainless steel, 254 SMO also provides high ductility and impact strength, making it ideal for demanding industrial applications.
Key Applications
Petroleum production equipment
Saltwater and seawater handling systems
Food and chemical processing equipment
Pulp mill bleach systems
Flue gas desulphurization scrubbers
Tall oil distillation columns
Offshore oil & gas production equipment
Desalination equipment
Material Specifications
International Standards
Standard
Designation
UNS
S31254
Werkstoff Nr.
1.4529
EN
X1CrNiMoCuN20-18-7
DIN
2.4660
AFNOR
Z1 CNDU 20.18.06AZ
Chemical Composition
Element
Content (%)
Iron, Fe
55.69
Chromium, Cr
20
Nickel, Ni
18
Molybdenum, Mo
6.1
Nitrogen, N
0.20
Carbon, C
0.010
Mechanical Properties
Properties
Metric
Imperial
Tensile strength
680 MPa
98600 psi
Yield strength
300 MPa
43500 psi
Modulus of elasticity
195 GPa
28300 ksi
Shear modulus
75 GPa
10900 ksi
Poisson's ratio
0.30
0.30
Elongation at break
50%
50%
Hardness, Brinell
210
210
Corrosion Resistance
254 SMO stainless steel demonstrates excellent resistance to pitting and crevice corrosion due to its high chromium, molybdenum, and nitrogen content. The very low carbon content minimizes risk of carbide precipitation during heating. This alloy maintains exceptional performance in chloride-containing environments, including seawater, making it suitable for prolonged exposure without suffering from crevice corrosion.
Environmental Protection: Flue gas desulfurization, wastewater treatment
Energy: Nuclear power generation, coal utilization, wave power generation
Petrochemical Industry: Refining and chemical equipment
Food Industry: Salt production, soy sauce brewing
Paper Industry: Various bleaching devices in high chloride environments
Product Gallery
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification:
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...